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Renewable energy

Humans have been harnessing water power for thousands of years, but in the past century, advancements have made water an integral part of the energy mix in the U.S. From hydropower to the new frontier of marine energy, here are five things you should know about water power. 1. Water power is everywhere Did you know that hydropower projects are in just about every state? Hydropower accounts for about 6% of the nation’s electricity, generating renewable energy for American homes and businesses. It’s projected that U.S. hydropower could still grow from 101 gigawatts (GW) to nearly 150 GW of combined electricity generation and storage capacity by 2050 by unlocking untapped hydropower resources. Marine energy has the potential to generate electricity for millions of homes from predictable and consistent waves and tides along our coasts. Since marine energy is an early-stage market, the Water Power Technologies Office (WPTO) makes investments supporting key technology innovations to harness this new frontier of energy. 2. Hydropower plays a major role in maintaining the reliability and the resiliency of the U.S. power grid Hydropower has long been the nation’s largest source of renewable electricity, providing not only baseload energy, but energy storage and essential services to the electric grid. In short, hydropower is the ultimate grid stabilizer — it quickly delivers power after an outage, addresses peak demands, and maintains proper voltage levels and frequencies across the grid, which are all necessary to ensure our energy security. Also, because hydropower can act like a battery by storing energy, it’s complementary to other forms of generation such as wind and solar. Hydropower makes sure power supplies stay constant. The Azura wave energy device at the U.S. Navy's Wave Energy Test Site in Hawaii Northwest Energy Innovations 3. Marine energy can revitalize infrastructure along our coastlines Marine energy is an emerging science and technology sector, with potential to stimulate new industry opportunities, create jobs, and increase manufacturing. Just this year, the Energy Department announced its partnership with Oregon State University to build a world-class wave energy testing facility in the coastal community of Newport, Oregon. This new facility can test up to 20 wave energy converters, allowing smaller nearby ports to take advantage. For example, the Port of Toledo can leverage its maritime resources to support the manufacturing and maintenance of marine equipment needed for the test site. Marine energy can be a source of economic revitalization to communities across the United States as the industry grows. 4. There’s room for more pumped-storage hydropower (PSH) 36 GW of it, in fact. The U.S. PSH fleet provides 97% of our nation’s utility-scale storage—all generated from 42 plants across the country. Because PSH has the ability to function as a battery and integrate variable renewable energy or excess electricity from base-load sources such as coal or nuclear, more storage like it is needed to support the grid. WPTO is funding early-stage research on new, transformative PSH designs that would improve sustainability and environmental performance and shorten development timeframes for new facilities. 5. Marine energy has the potential to provide power in remote locations By converting the energy of waves, tides, river, and ocean currents into electricity, marine energy technologies have the potential to provide cost-effective energy for remote or coastal areas military bases and smaller communities —where electricity costs are high from a reliance on imported fuels. Marine energy can also assist with a number of distributed ocean applications, including charging for ocean-based sensors and underwater vehicles, and non-electric uses like desalination-- the process of removing salt from seawater. These opportunities could more rapidly allow industry to develop and reduce technology costs in the near term while providing domestic energy independence from imported fuels.

SHAMBHO SHANKARA NAMAH SIVAY (A Tribute to Lord Shiva - Rajat Prakash) 🍁

Remembering Swami Vivekananda, on his 156th birth-anniversary. • Swami Vivekananda, one of India's most revered spiritual leaders, was born in Kolkata on January 12, 1863, as Narendra Nath Datta. • He was an Indian Hindu monk and a chief disciple of the 19th-century Indian mystic Ramakrishna. • He renounced the worldly pleasures in 1887 along with other disciples of Ramakrishna Paramhansa and took formal vows of sannyasa. • The spiritual leader's iconic speech at the World's Parliament of Religions in Chicago in 1893, is still remembered today. • He had a special interest in Western philosophy and history and was often assailed by doubts about the existence of God. • Through his speeches and lectures, he tried to awaken the religious consciousness among people and also tried to uplift the downtrodden using the principles of practical Vedanta. • At the World's Parliament of Religions, he took forward his message and touched upon topics like universal acceptance, tolerance and religion, which won his accolades at the international forum. • To honor his work towards youths, the Indian Government in 1984, declared January 12 as the National Youth Day and since 1985 the event is celebrated in India every year. #swamivivekanand #ramkrishnamission (at Delhi) https://www.instagram.com/p/Bsh6XSqjGa4/?utm_source=ig_tumblr_share&igshid=1xs7rskqlid10

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After 20 years in space, the Cassini spacecraft is running out of fuel. In 2010, Cassini began a seven-year mission extension in which the plan was to expend all of the spacecraft’s propellant exploring Saturn and its moons. This led to the Grand Finale and ends with a plunge into the planet’s atmosphere at 6:32 a.m. EDT on Friday, Sept. 15.

The spacecraft will ram through Saturn’s atmosphere at four times the speed of a re-entry vehicle entering Earth’s atmosphere, and Cassini has no heat shield. So temperatures around the spacecraft will increase by 30-to-100 times per minute, and every component of the spacecraft will disintegrate over the next couple of minutes…

Cassini’s gold-colored multi-layer insulation blankets will char and break apart, and then the spacecraft’s carbon fiber epoxy structures, such as the 11-foot (3-meter) wide high-gain antenna and the 30-foot (11-meter) long magnetometer boom, will weaken and break apart. Components mounted on the outside of the central body of the spacecraft will then break apart, followed by the leading face of the spacecraft itself.

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Rain is not only a boon of heaven bt also a love sending by sky to their lovely and green earth#SaveEarth#HaveSomeRain

Had to write an interpretation for a part of the book we’re reading in German class. Didn’t like doing it but I’m quite happy with how it turned up in the end.

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